From the snowy plains of the north to the coastal areas of the south, from the western Gobi to the eastern coast, across China's vast land, power plants operate day and night, delivering a steady stream of electricity for economic and social development. In the vast systems of every power plant, valve actuators from Yangzhou Hengchun Electronics Co., Ltd. stand silently on guard. 20 years of dedication, 100,000+ units, and 100+ units of 600MW+ performance — behind these numbers lies Hengchun Electronics' persistence and commitment to the power industry.
Since entering the power industry in the early 2000s, Hengchun Electronics has focused on the R&D and manufacturing of electric valve actuators. From the initial small and medium-sized units to today's million-kilowatt ultra-supercritical units, from traditional thermal power units to new energy supporting power stations, Hengchun Electronics has always grown together with China's power industry.
To date, more than 100,000 Hengchun valve actuators have been operating stably in various power plants nationwide, with the longest service history exceeding 20 years. This is not merely a stack of numbers — it is a record of reliable operation for 20 years. Whether during peak summer electricity demand or winter supply guarantee operations, Hengchun actuators always maintain stable performance and reliable quality, safeguarding the safe operation of every unit.
In the power industry, the larger the unit capacity, the higher the requirements for equipment. Especially for 600MW and 1000MW large units, their system complexity, harsh operating conditions, and reliability requirements are much higher than those of small and medium-sized units.
With excellent technical strength, Hengchun Electronics has successfully achieved batch application in large units:
· Largest applied unit: 1000MW ultra-supercritical unit
· 600MW+ unit application performance: 100+ units
· Covered unit types: supercritical, ultra-supercritical, subcritical, CFB, and other types
From 600MW to 1000MW, from supercritical to ultra-supercritical, every leap in unit capacity is a test and verification of Hengchun's product technical strength. Under harsh conditions such as high temperature and high pressure, and frequent peak shaving in million-kilowatt class units, Hengchun actuators still maintain stable and reliable operation performance, winning the trust of major power generation groups.
Thermal power plant systems are vast and complex. From boilers to steam turbines, from steam-water systems to flue gas systems, every link is inseparable from the precise control of valve actuators. With excellent performance and wide adaptability, Hengchun actuators have achieved full-system, full-scenario deep coverage in thermal power plants:
· Main steam system valves: Drive control of main steam gate valves and globe valves, withstanding high temperature and high pressure conditions
· Feedwater system valves: Feedwater control valves and globe valves, precisely controlling boiler feedwater flow
· Attemperation water control valves: Superheater and reheater attemperation water regulation, precise steam temperature control
· Boiler blowdown valves: Periodic and continuous blowdown system control
· Boiler drain valves: Drain control during start-stop and low load operation
· Soot blowing system valves: Medium control for steam soot blowing and sonic soot blowing systems
· Ash/slag discharge system valves: Boiler bottom slag discharge and pneumatic ash removal system valve drive
· Safety valves/PCV valves: Power operated relief valve control for boiler overpressure protection
· Main steam valves/control valve actuators: Core drive for steam turbine inlet control
· Turbine bypass system valves: High-pressure and low-pressure bypass valve control
· Extraction check valves/isolation valves: Safety control and isolation of extraction steam systems at all levels
· Turbine drain valves: Automatic control of cylinder and pipeline drain systems
· Lubricating oil system valves: Safety control of turbine oil systems
· Jacking oil system valves: Pressure and flow control of jacking oil systems
· Gland seal system valves: Pressure regulation of gland seal steam supply and overflow
· HP/LP heater drain valves: Water level regulation of high-pressure and low-pressure heater drain systems
· Deaerator system valves: Deaerator water level and pressure regulation and protection
· Condenser inlet/outlet valves: On-off control of circulating water inlet and outlet
· Condensate system valves: Condensate pump inlet/outlet, condensate regulation
· Circulating water system valves: Circulating pump outlet, condenser inlet/outlet large-bore valves
· Cooling tower system valves: Cooling tower water distribution and blowdown system control
· Makeup water system valves: Flow and pressure control of chemical makeup water
· Forced draft fan inlet/outlet dampers: Air volume regulation and isolation of forced draft systems
· Induced draft fan inlet/outlet dampers: Air volume regulation and isolation of induced draft systems
· Primary/secondary air fan dampers: Combustion system air distribution regulation
· Flue gas damper doors: Flue duct isolation and bypass damper control
· Desulfurization system valves: Limestone slurry, gypsum slurry, process water, and other system valves
· Denitrification system valves: Denitrification ammonia injection, dilution air, and other system valves
· Dust collector system valves: ESP and bag filter supporting valves
· Feed pump inlet/outlet valves: Inlet/outlet isolation of motor-driven and steam-driven feed pumps
· Coal mill system valves: Coal mill inlet/outlet, primary air, sealing air, and other valves
· Air compressor system valves: Pressure and flow control of plant compressed air systems
· Chemical water treatment system valves: Pretreatment, demineralization, dosing, and other system valves
· Fire water system valves: Reliable control of power plant fire water systems
· Fuel oil/gas system valves: Boiler ignition and auxiliary fuel system valves
· HVAC system valves: Plant heating, ventilation, and air conditioning system valves
Hengchun actuators can be adapted to various types of valves commonly used in power plants:
· Gate valves, globe valves, check valves, ball valves, butterfly valves, control valves, diaphragm valves, etc.
· Multi-turn, part-turn, linear stroke, and other drive forms
· On-off type, regulating type, intelligent type, and other functional configurations
· Standard type, high-temperature type, explosion-proof type, and other environmental adaptations
The power industry has extremely high requirements for equipment reliability — unplanned unit shutdowns can cause huge economic losses and social impacts. Over 20 years of application in the power industry, Hengchun actuators have withstood the test of various harsh operating conditions:
· High temperature and high pressure conditions: High temperature and high pressure environment of main steam and reheat steam systems
· Frequent peak shaving conditions: Deep peak shaving and frequent start-stop to accommodate new energy consumption requirements
· Continuous operation conditions: Stability test of units operating at full load for consecutive months
· Harsh environmental conditions: Complex environments such as high temperature, high humidity, dust, and corrosion
It is under such harsh tests that Hengchun actuators, with stable performance and reliable quality, have won the trust of major power generation groups including Huaneng, Datang, Huadian, SPIC, and China Energy, becoming a mainstream choice for valve actuators in the power industry.
20 years of dedication to power, 100,000+ units in operation, 100+ large unit performance records. Hengchun Electronics will continue to uphold the philosophy of "quality-oriented, innovation-driven," continuously providing more reliable and intelligent valve actuator solutions for the power industry, and marching toward a cleaner and more efficient future together with China's power industry.
